Tracy William Krohn (born August 26, 1954, in Houston, Texas) is an entrepreneur and auto racing enthusiast who was a new addition to the 2006 Forbes 400 list of the wealthiest Americans, at #320.
His racing team, Krohn Racing currently competes in the European Le Mans Series. In March 2007 he and Lola Racing Cars created Proto-Auto LLC and purchased a chassis design and Grand American Daytona Prototype Constructors Licence from Multimatic Motorsports, a racing car constructor, to build a Lola chassis for Grand-Am Daytona Prototype competition in 2008 and beyond.